import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue';
import Roles from '../components/power/Roles.vue';
import Cate from '../components/goods/Cate.vue';
import Params from '../components/goods/Params.vue';
import GoodsList from '../components/goods/List.vue';
import Add from '../components/goods/Add.vue';
import Order from '../components/order/Order.vue';
import Report from '../components/report/Report.vue';


Vue.use(VueRouter)

const routes = [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    { 
      path: '/home',
      component: Home,
      redirect:'/welcome',
      children:[
        {path: '/welcome', component: Welcome},
        {path: '/users', component: Users},
        {path: '/rights', component: Rights},
        {path: '/roles', component: Roles},
        {path: '/categories', component: Cate},
        {path: '/params', component: Params},
        {path: '/goods', component: GoodsList},
        {path: '/goods/add', component: Add},
        {path: '/orders', component: Order},
        {path: '/reports', component: Report},
      ]
    }
]

const router = new VueRouter({
    routes
})

// 挂载路由导航守卫
router.beforeEach((to,from,next)=>{
  // to 将要访问的路径
  // from 代表从哪个路径跳转而来
  // next 是一个函数，表示放行
  //     next()  放行    next('/login')  强制跳转
  if(to.path==='/login') return next()
  const tokenStr=window.sessionStorage.getItem("token")
  if(!tokenStr) return next("/login")
  next()
})
export default router
